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I returned to DIY electronics in 2009 after a 20 year pause by building a few kits to get in shape. This blog is for me to keep track of my progress.
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Fostex BK-20

Posted 12th August 2010 at 05:06 PM by alexcp
Updated 15th August 2010 at 04:18 PM by alexcp

Having built a few amplifiers, I wanted to build a pair of speakers and settled on Fostex BK-20 kits from Madisound with Fostex FE-206E 8" full range drivers. I've always considered carpentry not my cup of tea, so gluing, sanding, and painting the speakers took longer than expected. However, I am very satisfied with the sound.
Posted in Speakers
Views 4099 Comments 4
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Total Comments 4


  1. Old Comment
    So, 2-1/2 years later do you still like them? I am thinking of building a pair myself.
    Posted 15th March 2013 at 12:02 AM by nycello nycello is offline
  2. Old Comment
    alexcp's Avatar
    Oh yes, very much so. Paired with the Elekit TU-879S, these speakers are most enjoyable. I did build BK-16, too, but did not like them as much.
    Posted 16th March 2013 at 01:53 PM by alexcp alexcp is offline
  3. Old Comment
    Thanks - I had been thinking about the BK-16 or BK-20, but was concerned about dynamics and bass in the BK-16. I was looking at that amp as well a couple of years ago, and now that I'm getting a BLH, it looks like a good option. Which power transformer did you receive? I understand that a couple of different models were supplied, depending on the distributor.
    Posted 18th March 2013 at 12:38 AM by nycello nycello is offline
    Updated 18th March 2013 at 12:58 AM by nycello (Typo)
  4. Old Comment
    alexcp's Avatar
    I got my kit from tubedepot.com, and, as far as I remember, it included an R-core power transformer with a single 115 or 120V primary.
    Posted 18th March 2013 at 04:17 PM by alexcp alexcp is offline

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